Means for producing flint rods



Feb- 17, 1959 l. s. HlRscHHoRN 2,873,489

MEANS FOR PRODUCING FLINT RODS Feb- 17, 1959 l. s. HlRsc'zHHoRN 2,873,489

` MEANS FOR PRODUCING FLINT` RODS Filed Oct. 26. 1955 2 Sheets-Sheet 2 Slt Q INVENTOR. v /w/aa/j d: ,wwwa/w MEANS FOR PRODUCING FLINT RAO'DS Process Metals, fInc., Newark, NJ. Application october 26, 195s,`s`erin1`Nn. '542.354

s Claims. (c1. zz-'n -This invention relatesto `the manufacture -of yilints in rod formation.

Itiis well known lto cast flint metal intubular containers andto open these tubular containers 'thereafter `iriorder to obtain access to the introdenveloped bythe tubular container. Many disadvantages were observediwhen tubular containers were used whioh had overlapping Walls which United States Patent O Isidor S. Hirschhom, West Orange, N. J., assigner to New contributed to a llint ro`d formation whichwas not round and sometimes unsuitable for use in `pocket and other lighters.

Attempts have also been made `to cast flint `rods `in seamless tubular containers. However, idiculties arose in removing the envelope forming tubular container from uthe `core forming the ilint rod i proper.

The present invention has, therefore, "as 'one of litsob- -jec-ts to provide means facilitating a speedy removal of "seamless envelopes from cast i'ntlrods without damag- -ing or otherwise `affecting the same in regard toi-thesnrfac-e diameter'and shape.

`It is another 'object of the present invention to pro- Ivide"means aifo'rding lthe adjustment of`tools acting -on ythe"enveloped cast flint rod relative `to the'thickness of Vth'e tublarcontairier in order to achieve a speedy and ifritioriles's *separationof the seamless tubular container *from theint rodmaterial.

Itisstill-ano'ther object of the presentinventiontopro- `"I'hea'bove andother objects ofthe invention will `become 1"ftxther apparent from the following detailed description, `reference being made to the `aocompany/ing drawings-showing Va"preferred embodiment of the invention.

In the drawings: Fig. 11 is a'top plan view of a machine for separating i 2 is a'sideel'evatio'rial View 'of the machine shown `Figs."3 `to 7 illustrate various separation stages in the respectively, of Fig. Al; p

Fig. 8 is a top plan view of a detail vof the machine seen in `Fig. l.

While 'there is shown and describedmhereini certain spefciiic structure embodying the invention, `it will be mani- 'fest to those skilled 'in the art `that various-modifications and .rearrangements of the parts may be .made without departing `from the scope of the invention, and that 4.the

`same is not limited to the particular form Aherein shown and described, except'in so far as indicated by the appended claims.

Referring now more Iin greater -`detail to the machine 2,873,489 Patented Feb. 17, 14959 ICC 13 of ilint rod enclosed in its seamless envelope-may --be advanced by means of a'friction belt 15 drivenby fwheel 14 over which itis `trainedito run from the latterbelow `guideway or slot 1 2over wheel 16 back to wheel 14 and `aitensionwheel 17. `Wheel 14 is driven byfmea'nsoffa transmission belt 19 `from motor 18, whereby wheeldt is rotatingiin the directionwofarrow A.

On the machine and forwardly of bed 711is arranged a. guide nger 20 swivelly supported at 120a'which-depresses the enveloped flint rod 13 into 'the guideway 12, while said rod is impell'e'd through belt 15. Laterallyof guideway `12 there arepositioned `a .pair `of `ii'rstdriving rollers 21, 22 which have suitably Ishaped or yiltnurled peripheral faces 21a, 22a, whereby said-rollers :21, 22 push the enveloped flint rod 13 against a knife 4ZBplated in thepath of said rod. Knife or slittingtool "231has "a forward `knife edge 24 'which `extends :in th'e direction opposite to that of themovement of said envelopedint rod 13. Further, provided directly behind knife 23 lis a plow 25 provided with downwardly directed spreading round edges `26, 27.

It `will beobserved Afrom Fig.` 8 thatslittin'g tool 23 `an'dplow 25 are heldinposition by a clamping 'earriag'e 30 which is equippedwith suitable screw adjustment means 28 and l29 topermt height Vadjustment off slitting toolfor cutter`23iV and plow 25', respectively, relative -to thefiehvelopedint rod 13 as in'dicatedbyarrows `B.

Carriage 30 is further adjustable in lengthwise direcftionfo" the Ag'uideway I'Z'by means ofsuitableadjustment screws ,31 and 32 'which engageelongated slots '33, 34, respectively, in order to facilitatelengthwise adjustment of carriage 30-relative to a marking 35 in 4fthe direction of `arrows B. A second pai-r of drive wheels 36, 3'7is 'arranged in order to positively4 grip envelopedflint `ro`d`l1i3 laterally and `exteriorly when the same is jpushecbby wheels 21, 22 and held by `guidenger '20 during movement against slitting knife edge `24`and plow 25.

As canY be further 'seen kfrom Fig. `3 the`ili`nt rod proper 13a has the seamless envelope 13b, the latteribein'g slit by thefsharp knife or cutter edge '24. Thereafter theenvelope'1`3b is spread open by 'means of the'roindedjaws 26 a'r1d`2'7, whereby the slit ends 13ca`n`d "13of the envelop'e are outwardly moved inaocordancewith 'the `ar rows C. n

Subsequent to suchspr'eading of the envelope 13b"'t`l1`e latter is thenlsubjetedfto .the acti'onof a'pair ofspreading rollers 38, 39,`wh`er`by`the cnialends`40, 41 thereof spreadth'e 'aforesaid lends 13o, 13d in-"the direction of arrows'D, as 'more clearly seenrin FigfS. In the subsequent stage "of 'separation of envelope r13H9 fromthe A flint rodproper 13a, the envelope V13b is progressively ythen fexpesedto hanening rllers 42, 43, whereby the nin; rod 13a 's l'substaiitially but not completely separated from env1ope`13b.

The freed ilirit rod 13a is then guided `past .a `separation finger 45 having ai-curved `forward shoe 44 which pushes envelope 13b away `from freed flint-rod 13a in the directionof arrow E While ilintrod t13a is fur-therwmoved in the direction of arrow F.

`As indicated in Fig. ..1 :the spneading andattening `rollers 38,69 and 42, -4'3a1feidriven througha suitable `gearing 46.

p vLikewise the pairs -of-lrollers V21, 122 and 536, 37 are i driven by amotor (not shown) which is also operatively connected to gearing 46. .This motorlis accommodated in housing 50. i

` As c'an be further seen frornFigs. -landthetpairsiof rollers "21, 22 and 36, 437 extend on substantially vertical "shafts'vSl, I52 whereas the pair of conically shaped rollers 38,l 39 and flattening rollers 42, 43 are carried by horizontally extending shafts 53, 54.

Against the pair of flattening rollers 42, 43 abuts a roller 47 which is biased by spring means 48, which extends between a lever 49 and a fixed attachment on housing 50.

It will be further noted that instead of single flint rods enclosed in seamless containers or envelopes 13b a pluralityof such enveloped alloyed .rods may be `fed simultaneously in juxtaposition through such a machine having rows of slittingtools and plows and that such rods may be automatically fed from a hopper onto guide ways 12 of bed 11 of the machine.

Generally the flint rods contained in the envelopes have a length of about 5 to 15 inches and the thickness of the envelope 13b is about .005 to .0010 of one inch, whereas the outer diameter of the finished and separated flint rod may range between 0.075 to 0.250 of one inch.

The flint rod 13a when discharged from the machine is distinguished from the conventional rods heretofore obtained, by its perfectly round cross section (Fig. 7) so that the flint rod may be readily and better controlled in regard to its effective diameter, as compared with flint rods which are cast in tubular containers closed through overlapping ends which always produce undesirable ridges or flashes on the finished flint rod.

It is further to be noted that the process and apparatus made in accordance with the present invention may also be used in the production of welding rods and similar alloyed products and that the seamless tubular container may consist of steel, stainless steel or copper tubing.

From the foregoing disclosure it may be readily realised that there has been provided in accordance with the v,aforesaid invention a substantially automatic process for the production of flint and like alloyed rods which during Having thus described the invention, what is claimed as l new and desired to be secured by Letters Patent, is:

l. A machine for separating the envelope from a flint rod cast in said envelope; comprising a horizontally extending housing, means for feeding and guiding said envelope with said flint rod in a linear path along said housing, a slitting tool, a plow positioned rearwardly of said slitting tool, a support for said slitting tool and said plow arranged along said path and above said housing, first roller means placed along said path and gripping said envelope exteriorly and laterally thereof to force said ast/asso ance with the thickness of said envelope, first roller means placed along and adjacent said path for gripping said envelope laterally and exteriorly thereof to force said envelope against said slitting tool and thereafter against said plow tool to thereby slit the uppermost portion of said envelope open and to subsequently bend the slitted ends of said envelope from above the latter in downward direction by means of said side edges of said plow tool, second roller means positioned adjacent said first roller means and along said path, said second roller means being profiled to facilitate displacing the slitted ends of said envelope away from said rod andato flatten said envelope, and means located in said linear path for diverting said flattened envelope from said flint rod.

3. A machine for lseparating a tubular container from a flint rod cast therein; comprising guide means directing said container with said flint rod along a linear feed path, a slitting tool, a plow tool positioned rearwardly of said slitting tool and along and above said linear path, a support including height adjustment means for said slitting tool and said plow tool to align said tools relative to the uppermost portion of the surface of said container and clear of sai-d flint rod, first roller means placed adjacent said path and opposite said slitting tool for gripping said container exteriorly and laterally thereof and forcing same against said tools to cut said container along the uppermost generatrix yand thereafter to open up said slitted container, second roller means positioned adjacent said plow tool for spreading the slitted ends of said container away from said rod to thereby progressively flatten said container, and means for separating said flattened container from said flint rod.

4. A machine for separating the seamless tubular eni velope from a flint rod which is cast in said envelope;

envelope against said slitting tool and thereafter to said` plow, respective'second roller means along said path for contacting the slitted ends of said envelope and bending same away from said rod and flattening said envelope, and means for separating said rod from said flattened envelope, said first roller means having axes extending perpendicular to said housing, said second roller means having axes directed parallel with respect to said housing.

2. A machine for .separating the seamless tubular envelope from a flint rod which is cast in said envelope; comprising means displacing said envelope with said flint rod in a linear feed path, a slitting tool, a plow tool provided with downwardly directed side edges and positioned comprising a horizontally extending bed provided with linear guide means for displacing said envelope with said flint rod therealong, a slitting tool placed in said guide means, a plow tool provided with downwardly directed side edges for engaging said envelope in astride position with respect to said flint rod and arranged adjacent said slitting tool, a support yfor said slitting tool and said plow tool, means on said support for adjusting the position of said tools relative to each other and above and exteriorly of said envelope, first roller means adjacent said slitting tool for engaging said envelope laterally and exteriorly thereof and forcing same against said slitting tool and thereafter against said plow tool to thereby slit the upper surface end of said envelope open and to progressively spread the slitted upper ends of said envelope by means of said side edges of said plow tool away from said flint rod, second roller means adjacent said first roller means land profiled to facilitate displacing the slitted ends of said envelope relative to said flint rod to flatten said slitted envelope, and means reaching into said linear guide means for diverting said flattened envelope from said flint rod, the axes of said first roller means being perpendicular to the axes of said second roller means and extending inv substantially vertical direction to said bed.

5. A machine for separating a metallic tubular envelope from a flint rod previously cast in said envelope; comprising a horizontally extending guide bed on which said envelope with said flint rod enclosed therein is transported along a linear path, a support arranged adjacent said bed, first means projecting from said support above and lengthwise of said envelope to depress the latter onto said guide bed, pairs of first roller means arranged opposite each other and at eitherside of said guide bed for engaging said envelope laterally and exteriorly thereof and to feed same lengthwise of said guide bed, second means in the form of a slitting tool arranged on said support and extending perpendicularlyl to said linear path of said envelope for engagement therewith, third means in the form of a plow tool located on said support and extending therefrom perpendicularly to yand into the path of said envelope, said slitting tool and said plow tool being disposed for adjustability with respect to each other and relative to and in conformity with the thickness of said envelope, so that said slitting tool will slit said envelope along a generatrix thereof located centrally on the outer surface of said envelope, said plow tool being provided with a portion for engaging the wall-s of said envelope adjacent said slit and with another portion extending astride said flint rod and spreading said slitted walls laterally of said flint rod, second pairs of roller means po- Sitioned to extend laterally and from above said ilint rod and engageable with said slitted Walls of said envelope after the latter have been spread apart by said other plow tool portion, said second roller means including a pair of attening roller means adapted to engage said slitted and laterally spread walls of said envelope and to finally ilatten the same, yand fourth means extending into said linear path from thereabove and shaped to deviate said flattenedenvelope from said linear path along which said flint rod is guided.

References Cited in the le of this patent UNITED STATES PATENTS 1,301,331 Smith Apr. 22, 1919 1,701,863 Beichel Feb. 12, 1929 1,704,635 Snyder Mar. 5, 1929 1,749,939 Heller Mar. 11, 1930 1,929,915 Deitz Oct. 10, 1933 2,062,486 Van Dusen Dec. 1, 1936 2,493,143 Ingels Jan. 3, 1950 2,505,426 OFlaherty Apr. 25, 1950 2,636,408 Mitchell Apr. 28, 1953 2,692,421 Cozzo Oct. 26, 1954 2,699,584 Woodworth Jan. 18, 1955 

